Changed interface slightly

board.rb

@@ -64,5 +64,16 @@ class Board
     get_free.empty?
   end
 
+  def is_over?
+    if any_winner? then
+      system "clear"
+      print self.to_s
+      print "\nSomeone won!\n"
+    elsif is_full? then
+      system "clear"
+      print self.to_s
+      print "\nGame is done!\n"
+    end
+  end
       
 end

bot.rb

@@ -1,17 +1,17 @@
 class Bot
 
-  attr_reader :best_choice
+  attr_reader :best_choice, :val
   
   def initialize board, piece
+    @val = piece
     @piece = piece
     @opponent = switch piece
   end
 
   def move board
+
     return "\nGame is done!" if board.is_full?
     return "\nSomeone won!" if board.any_winner?
-#    move = @board.get_free.sample
-#    @board.set " O ", move
     minmax board, @piece
     board.set @piece, @best_choice
   end
@@ -23,13 +23,12 @@ class Bot
     scores = {}
     
     board.get_free.each do |space|
-      # Copy board so we don't mess up original
-      potential_board = board.dup
-      potential_board.set cur_player, space
+      # dup and clone only create a shallow clone, so it doesn't clone the array inside the board object.
+      board.set cur_player, space
 
-      
-      scores[space] = minmax(potential_board, switch(cur_player))
-      potential_board.remove space
+      scores[space] = minmax(board, switch(cur_player))
+
+      board.remove space
     end
 
     @best_choice, best_score = best_choice cur_player, scores

human.rb

@@ -1,8 +1,9 @@
 class Human
 
-  attr_reader :piece
+  attr_reader :piece, :val
   
   def initialize board, piece
+    @val = piece
     @board = board
     @piece = piece
   end

ticcy.rb

@@ -7,39 +7,34 @@ require './human'
 @board = Board.new
 
 
+  def is_over? board, cur
+    if board.any_winner? then
+      system "clear"
+      print board.to_s
+      print "\n#{cur} won!\n"
+      return true
+    elsif board.is_full? then
+      system "clear"
+      print board.to_s
+      print "\nGame is done!\n"
+      return true
+    end
+  end
+
 def play_game player, bot
   while true do
     system "clear"
 
     print @board.to_s
+    
     player.move
     
-    if @board.is_full? then
-      print @board.to_s
-      print "\nGame is done!\n"
-      break
-    end
-      
-    if @board.any_winner? then
-      print @board.to_s
-      print "\nSomeone won!\n"
-      break
-    end
+    if is_over? @board, player.val then break end
     
     bot.move @board
     
-    if @board.is_full? then
-      print @board.to_s
-      print "\nGame is done!\n"
-      break
-    end
-      
-    if @board.any_winner? then
-      print @board.to_s
-      print "\nSomeone won!\n"
-      break
-    end
-    system "clear"
+    if is_over? @board, bot.val then break end
+
   end
 end